Add back timeout expectations for a couple of tests.

Bug: 1095379
Change-Id: Icf60c0c72ed31abbb547a13af57f12e0bbe2d74e
Tbr: masonfreed@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2545762Reviewed-by: Marijn Kruisselbrink <mek@chromium.org>
Commit-Queue: Marijn Kruisselbrink <mek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828429}

third_party/blink/web_tests/TestExpectations

@@ -6004,3 +6004,6 @@ crbug.com/1149734 http/tests/devtools/sources/debugger-ui/debugger-inline-values
 crbug.com/1149734 http/tests/devtools/sources/debugger-ui/reveal-execution-line.js [ Pass Failure Timeout ]
 crbug.com/1149987 external/wpt/websockets/Create-blocked-port.any.html [ Pass Timeout ]
 crbug.com/1149987 external/wpt/websockets/Create-blocked-port.any.worker.html [ Pass Timeout ]
+
+crbug.com/805756 external/wpt/html/semantics/tabular-data/processing-model-1/span-limits.html [ Pass Timeout ]
+crbug.com/666993 [ Debug ] external/wpt/requestidlecallback/callback-idle-periods.html [ Pass Timeout ]